抄録
The anti-microbial activity of green tea (GT) and green tea polyphenols (GTPP) on Vibrio harveyi was investigated under different growth conditions: nutrient rich medium (325 agar mixed with GT and GTPP) and low nutrient conditions (sterile seawater) . Studies of its effects on the bacterial microflora in shrimp hepatopancreas were also explored. Both GT and GTPP were found to be effective against V. harveyi. The growth of V. harveyi was inhibited at 400 ppm GTPP and 1, 000 ppm GT on 325 agar plates. Under low nutrient conditions in saline environment simulating the natural habitat for Vibrio species, growth of V. harveyi was inhibited at 300 GTPP and 800 GT. The susceptibilities of bacteria isolated from shrimp hepatopancreas varied with the type of strain at different concentrations of GT and GTPP.
